Javaid Quratulain, Umedani Loung
Quratulain Javaid, MBBS, PGD-Bioethics, MPhil-Anatomy Department of Anatomy, Bahria University Health Sciences, Campus Karachi, Pakistan.
Loung Umedani, MBBS, PhD. Department of Biochemistry, Bahria University Health Sciences, Campus Karachi, Pakistan.
Pak J Med Sci. 2025 Jul;41(7):2041-2045. doi: 10.12669/pjms.41.7.10559.
To determine the prevalence of absence of Flexor digitorum superficialis and its association with gender, handedness, and agenesis of Palmaris Longus.
A cross-sectional descriptive study was carried out at Bahria University Health Sciences Campus (BUHSC), Karachi from August 2022 to September 2024 that included both males and females. Standard and Modified Tests for Flexor digitorum superficialis (FDS) while Schaffer's and Thompson's Test for Palmaris longus PL were used to check prevalence. By SPSS version 27, statistical analysis was done. Frequencies and percentages were used to show categorical variables. To determine the association of the absence of FDS superficialis with gender, handedness, and agenesis of PL, the Chi-square test was used. A P-value of ≤0.05 was considered as significant.
Five hundred and four limbs were observed for functional agenesis of FDS for the 5 digit and agenesis of PL. Overall, functional agenesis of FDS for the 5 digit was 35.7% while PL agenesis was 33.7%. Functionality of FDS showed highly significant results (p<0.001) depicting variability on two sides in terms of dependent and independent function. When handedness was compared, results were not statistically significant for FDS absence (p=0.73). When agenesis of FDS was compared with PL, results were not statistically significant (p=0.527). Bilateral agenesis of both PL and FDS was 3.2% while unilateral agenesis of both muscles was 10%.
FDS functionality showed variability on two sides in terms of dependent and independent function. Both genders showed a higher prevalence of right-sided agenesis. Females showed more unilateral agenesis while males had higher bilateral prevalence. We found no association between agenesis of the FDS of 5 digit with handedness and PL agenesis.
确定指浅屈肌缺如的患病率及其与性别、利手和掌长肌发育不全的关联。
2022年8月至2024年9月在卡拉奇的巴哈里亚大学健康科学园区（BUHSC）开展了一项横断面描述性研究，纳入了男性和女性。采用指浅屈肌（FDS）的标准测试和改良测试，同时采用沙弗氏和汤普森氏掌长肌（PL）测试来检查患病率。使用SPSS 27版进行统计分析。频率和百分比用于显示分类变量。为了确定指浅屈肌缺如与性别、利手和掌长肌发育不全之间的关联，采用了卡方检验。P值≤0.05被认为具有统计学意义。
观察了504条肢体的第5指指浅屈肌功能发育不全情况和掌长肌发育不全情况。总体而言，第5指指浅屈肌功能发育不全率为35.7%，而掌长肌发育不全率为33.7%。指浅屈肌的功能显示出高度显著的结果（p<0.001），表明在依赖和独立功能方面两侧存在差异。比较利手时，指浅屈肌缺如的结果无统计学意义（p=0.73）。比较指浅屈肌发育不全与掌长肌发育不全时，结果无统计学意义（p=0.527）。掌长肌和指浅屈肌双侧发育不全率为3.2%，而两块肌肉单侧发育不全率为10%。
指浅屈肌功能在依赖和独立功能方面两侧存在差异。两性均显示右侧发育不全的患病率较高。女性单侧发育不全较多，而男性双侧患病率较高。我们发现第5指指浅屈肌发育不全与利手和掌长肌发育不全之间无关联。
